I don't know. I have a D800, but I have no motivation to sell my D200 or even my D40. They all get used. I'd see no reason to ditch the D40 because it does offer the convenience of auto mode and takes great pictures if the lighting is halfway decent. The D200 earns its keep any time I want to drag out a big gun but not have 5000 dollars worth of camera and lens hanging around my neck. The D800 is what I use when I'm shooting for score.
Upgrading from prosumer to professional equipment at no cost to you is certainly a sweet deal. But I'd be in no hurry to dump any older equipment. Leave it on the shelf and see what you CHOOSE to use after you've had your new gear for a while. Keep what you use, sell what gathers dust.
It seems strange, but I'm keeping my D40 and about to sell off my D70S and my D5000 due to usage habits. On paper the D70S is better than the D40 but the D40 is more convenient for me and simpler and easier to use and I can't tell any difference in picture quality. And anything the D5000 does, the D800 does better.
Upgrading from prosumer to professional equipment at no cost to you is certainly a sweet deal. But I'd be in no hurry to dump any older equipment. Leave it on the shelf and see what you CHOOSE to use after you've had your new gear for a while. Keep what you use, sell what gathers dust.
It seems strange, but I'm keeping my D40 and about to sell off my D70S and my D5000 due to usage habits. On paper the D70S is better than the D40 but the D40 is more convenient for me and simpler and easier to use and I can't tell any difference in picture quality. And anything the D5000 does, the D800 does better.